package thread;

public class SyncDemo4 {
    public static void main(String[] args) {
        Foo f = new Foo();

        Thread t = new Thread(){
            public void run() {
                f.methodA();
            }
        };

        Thread t1 = new Thread(){
          public void run(){
              f.methodB();
          }
        };

        t.start();
        t1.start();
    }
}

class Foo{
    public synchronized void methodA(){
        try {
            Thread t = Thread.currentThread();
            System.out.println(t.getName()+"正在执行A方法...");
            Thread.sleep(5000);
            System.out.println(t.getName()+"执行A方法完毕");
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    public synchronized void methodB(){
        try {
            Thread t = Thread.currentThread();
            System.out.println(t.getName()+"正在执行B方法");
            Thread.sleep(5000);
            System.out.println(t.getName()+"执行B方法完毕");
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}
